Abstract: A method for determining motional branch current in an ultrasonic transducer of an ultrasonic surgical device over multiple frequencies of a transducer drive signal. The method may comprise, at each of a plurality of frequencies of the transducer drive signal, oversampling a current and voltage of the transducer drive signal, receiving, by a processor, the current and voltage samples, and determining, by the processor, the motional branch current based on the current and voltage samples, a static capacitance of the ultrasonic transducer and the frequency of the transducer drive signal.

Abstract: Shelf mounted electronic display modules which preferably include a first outwardly extending portion containing an electronic display and an antenna positioned outwardly from a shelf rail when mounted and a second rearwardly extending portion containing a printed wiring board and a battery power source positioned behind and protected by the shelf rail when mounted. The first outwardly extending portion and the second rearwardly extending portion are preferably connected below the shelf rail by a bight portion which mechanically and electronically connects the first outwardly extending portion and the second rearwardly extending portion together to form a substantially U-shaped configuration.